Linear Technology DC193 Demo Manual Download Page 8 | Manualshive

Page: 8 / 8

Linear Technology DC193 Demo Manual Download Page 8

8

DEMO MANUAL DC193

NO DESIGN SWITCHER

dc193f LT/TP 0298 500 • PRINTED IN USA



LINEAR TECHNOLOGY CORPORATION 1998

Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

●

(408) 432-1900

FAX: (408) 434-0507

●

TELEX: 499-3977

●

www.linear-tech.com

PC FAB DRAWI G

U

PCB LAYOUT A D FIL

U

W

Component Side Silkscreen

Component Side

Component Side Mask

Solder Side

Solder Side Mask

Pastemask Top

DIAMETER

NUMBER OF

SYMBOL

(INCH)

HOLES

PLATED

A

0.020

7

YES

B

0.040

6

YES

C

0.072

2

NO

D

0.094

7

YES

TOTAL HOLES

22

NOTES: UNLESS OTHERWISE SPECIFIED
1.

MATERIAL: 2 LAYERS, 0.062" THK. FR-4 GLASS EPOXY 2 OZ. COPPER CLAD.

2.

ALL HOLES SHALL BE PLATED THRU.

3.

PLATE THRU HOLES WITH COPPER .0014 MIN. THICKNESS. ALL HOLE SIZES IN HOLE
TABLE ARE AFTER PLATING.

4.

SILKSCREEN: WITH WHITE EPOXY NON-CONDUCTIVE INK.

5.

FINISH: ELECTRODEPOSITED TIN-LEAD COMPOSITION. BEFORE REFLOW. SOLDER
MASK OVER BARE COPPER (SMOBC).

6.

SOLDER MASK: USE FILM PROVIDED, BLUE OR GREEN.

7.

SCORING:

2.000"

2.000"

B (6 plcs)

C

C

D

D

D

A

A

A

A

A

A

A

D

D

D

D

Downloaded from

Downloaded from

Downloaded from

Downloaded from

Downloaded from

Downloaded from

Downloaded from

Downloaded from

«
...
6
7
8

Summary of Contents for DC193

Page 1: ...tto2 5V or 3 3V with a simple jumper selection Other output voltages can be programmed with an optional resistor ThedemoboardhighlightsthecapabilitiesoftheLTC1626 which is able to smoothly shift from...

Page 2: ...3 12 11 10 9 8 PWR VIN VIN LBOUT LBIN CT ITH SENSE SW PWR VIN PGND SGND SHDN VFB SENSE C3 0 1 F 16V CIN 47 F 10V VIN LBIN LBOUT SHDN C1 3900pF C2 270pF R4 10k 1 J1A R5 6 04k 1 J1B R6 J1C C5 100pF C4 1...

Page 3: ...N pin directly to VIN The shutdown current will be dominated by the current flowing through pull down resistor R1 that is the current measured at VIN will be VIN 22k To measure the shutdown current of...

Page 4: ...teretic comparator that when tripped shuts down the MOSFET drive and control circuitry to conserve DC supply current From the time the comparator trips until the lower com parator threshold is reached...

Page 5: ...ents should not be taken at the end of test leads at the load Refer to Figure 4 for proper monitoring equipment configuration A V VOUT GND V LOAD LBOUT LBIN SHDN GND VIN LTC1626 SINGLE CELL LI ION STE...

Page 6: ...T No regulator can deliver enough current to prevent this problem if the load switch resistance is low and it is driven quickly The only solution is to limit the rise time of the switch drive so that...

Page 7: ...ode is when the output is short circuited Under this condition the diode must safely handle IPEAK at close to 100 duty cycle Schottky diodes are a good choice for lowforwarddropandfastswitchingtimes M...

Page 8: ...HOLES 22 NOTES UNLESS OTHERWISE SPECIFIED 1 MATERIAL 2 LAYERS 0 062 THK FR 4 GLASS EPOXY 2 OZ COPPER CLAD 2 ALL HOLES SHALL BE PLATED THRU 3 PLATE THRU HOLES WITH COPPER 0014 MIN THICKNESS ALL HOLE SI...

Reviews:

No comments